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  1. # include <stdio.h>
  2.  
  3. void myToUpper(char s[]){
  4. 	int i;
  5. 	for(i=0; s[i]!='\0'; i++){
  6. 		if(97<=s[i]&&s[i]<=122){
  7. 			s[i] -= 'a' - 'A';
  8. 		}
  9. 	}
  10. }
  11.  
  12. int main(){
  13.     char s[100];
  14.     scanf("%s",s);
  15.     printf("%s -> ",s);
  16.     myToUpper(s);
  17.     printf("%s\n",s);
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
copy 
aBcDe
stdout
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aBcDe -> ABCDE
https://ideone.com/UlVpoU
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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